Door-spring.



A. M. BARNETT.

Domi sp1-.Lm

APPLICATION FILED APR. 13. 1908.

i?? Patented Feb. 16, 1909.

Snowdon.

UNITED spares refrains operen.

AMERICL'S M. BARNETT, OFl CHICKASHA, OKLAHOMA, ASSIGNOR, BY DREUT AND MESNE ASSIGNMENTS, OF ONE-FOURTH TO JOHN W. JONES AND ONE-FOURTH TO JOHN H.

LYNCH, 13o-rn or cmcmsna. OKLAHOMA.

Doon-sperme.

' fmyeiaesa.

Specification @Lettere Patent.

rate-ated Feb. 1e, leon.

Application atea apra isf'wos. sei-iai No. 426,792.

T o all whom 'it 'may concern.'

Be it Iknown that I, AMERIcU-s M. Ban- NnT'r, a citizen of the United States, residing at Chickasha, Grady county, and State of Oklahoma, have invented a new and usevful Door-Spring, of which the following is as ecilication. his invention relates to improvements in doonsprings, such as are used for closing doo1s,ggatesand the like.v

1 Oneobject of the present invention is the construction of a device which will act to both close and hold the door or gate open. The latter feature will be found verydesirable when applied to house doors where it is often necessary to have the door wide open, such as when cleaning rooms or moving articles from one room to another.

Another object of the device is to so position the spring that it will be under tension when-the door is closed, thus guarding against the' latter becoming ajar and avoidl ith these and other objects in view, as will more fully hereinafter appear, the in- .Vention consists in certain novel features of construction and arranofement of parts,-

hereinafter fully describe illustratedy in the accompanying drawings' and particularly pointed out in the appended claim, it beine' understood that various changes ,in the orm, proportions, size and minor details of the structure may be made without departin from the spirit or sacricing any of the a vantages of the invention.

In the accompanying drawings Figure 1 is a plan view showing theidevice applied to an ordinary door and casing. Fig. 2 illustrates the position of the parts with the door wide'open. Fig. 3 is a. rear elevation of a door and casing showing the device applied y thereto.

Similar numerals of reference are employedfA to indicate corresponding arts throughout the several figures of the rawin s.

' n the construction illustrated in Figs. 1, 2 and 3, the device is shownapplied to a door hung on the right of a frame 1, although the device may be as readily applied to 'a door mounted opposite as wil appear later.

Suitably secured adjacent the up er `end of the door 2 and at approximatelyht,` e .middle thereof, is a bracket 3, preferably'formed of metal or other suitable material and centrally provided with a seat 4, the function of which will presently appear. ,A similar bracket 5 issecured to the frame 1 directly above the plane of the door 2 and occupies a position approximately intermediate the bracket 3 and inner edge of the door 2. lever G, preferably formed olf a single piece of metal or other suitable material, is provided at one end with a downwardly projecting arm 7, adapted to enter the seat 4 of the Abracket 3, the arm being provided with screw threads anda nut 8 o erating thereon secures the arm in the seat, as illustrated-'ia Fig. 3. On the opposite end of the lever is which is adapted tobe secured in a seat 19,-

formed in the bracket 5 on the frame preferably by a nut 13. The opposite end of the 'lever is providedwith an eye 14. In assembling the Aparts thus far described, the eyes 9 and 14 formed on the ends of the levers 6 and 10 are bron ht to register and a suitable rivet 15 or the h te is inserted and loosely secured therein.

It is obvious with this constructionthat the levers are pivotally mounted on the door and 'frame and connected to each other. Mounted on the lever '10 adjacent its .point of connection withthe frame Q is a collar 16, provided on either side with attachin eyes 17 to either of which is secured one en of a helical spring 18 the `opposite end of said spring being secured' to an eye bolt 15,)` anchored in the frame 1. In the construction illustrated in the several iioures of the drawings. it is designed that llie normal length ol the spring 1S shall be slightly less than the distance between the eye 17 and eye holt 19, in order that when the door is closed, as shown in Fiets. l and 3, the tension oiE the spring 18 will be sufficient to keep the door tight in the frame and at no time will it be ajar. i l

In the vuse of the device, when the door is opened at right angles to the frame, it will close automatically if allowed to do so, for at this point the lever will-not have assed the central line of the spring 18. W en, however, the door is thrown full open so as to lie in a plane arallel to the wall or frame, the lever 10 wi l have passed the central line with the spring 18 'and the llatter hold the llt dos? in openpo'sition, as clearly shown in litige 2. his to beiimtber observed that the 16 is held inl'place on the lever 10 by mme of a set screw/.20.' With this con- /3 etmeion the 'collar can be adjusted on the lever andthe spring 18'kept at proper tension, v

'ifi/hat ieclaimed isz- 'The combination with a door and door 16 rxme, 'di supporting brackets secured to the dm'giiaxd Vdoor` frame, respectively, and provided with sockets Vforming bearings, converging operating levers having their outer ends pivotnll'yunitedand their inner ends vjournuled in said sockets, e clip slidably means for locking the clip in adjusted position.

` Ih testimony that I claim the foregoing as my own, I have hereto silixed my signature in the presence of two Witnesses.

itMERioUs M. BA'RNE'M.

1Witnesses f.v

W. H'. MINTER, JONAS COOK. 

